A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Laboratory and Field Investigation of Subgrade Soil Stabilization in Arkansas
Poor subgrade soils require stabilization to provide a stable platform during the earthwork construction operation. Arkansas Department of Transportation (ARDOT) often faces problematic soils that do not possess sufficient strength to support wheel loads imposed upon them during construction. Thus, it is necessary to stabilize these soils to provide a stable subgrade or a working platform for the construction of pavements. The main objective of this research was to establish useful guidelines for subgrade stabilization and create standard rehabilitation techniques for selected geological regions of the state. The research team conducted a review and evaluation of the current ARDOT soil stabilization procedure along with the existing procedures of the nearby states. Interviews of ARDOT district and construction personnel were conducted to gain insight into their soil stabilization experience in their respective districts. An evaluation of the state geological conditions, in terms of surficial soil types, was conducted. Three different stabilizing agents (Portland cement, Lime, and Class C Fly Ash) were evaluated through laboratory experiments and field demonstration in three ARDOT’s construction projects. The post-construction performance of these test sections was evaluated by measuring their surface roughness (international roughness index). Based on the findings of laboratory test results and performance of the test sites, subgrade stabilization guidelines for future ARDOT projects have been established.
Laboratory and Field Investigation of Subgrade Soil Stabilization in Arkansas
Poor subgrade soils require stabilization to provide a stable platform during the earthwork construction operation. Arkansas Department of Transportation (ARDOT) often faces problematic soils that do not possess sufficient strength to support wheel loads imposed upon them during construction. Thus, it is necessary to stabilize these soils to provide a stable subgrade or a working platform for the construction of pavements. The main objective of this research was to establish useful guidelines for subgrade stabilization and create standard rehabilitation techniques for selected geological regions of the state. The research team conducted a review and evaluation of the current ARDOT soil stabilization procedure along with the existing procedures of the nearby states. Interviews of ARDOT district and construction personnel were conducted to gain insight into their soil stabilization experience in their respective districts. An evaluation of the state geological conditions, in terms of surficial soil types, was conducted. Three different stabilizing agents (Portland cement, Lime, and Class C Fly Ash) were evaluated through laboratory experiments and field demonstration in three ARDOT’s construction projects. The post-construction performance of these test sections was evaluated by measuring their surface roughness (international roughness index). Based on the findings of laboratory test results and performance of the test sites, subgrade stabilization guidelines for future ARDOT projects have been established.
Laboratory and Field Investigation of Subgrade Soil Stabilization in Arkansas
Hasan, Md. Ariful (author) / Hossain, Zahid (author) / Elsayed, Ashraf (author)
Tran-SET 2021 ; 2021 ; Virtual Conference
Tran-SET 2021 ; 259-275
2021-11-17
Conference paper
Electronic Resource
English
Stabilization , Subgrade , Cement , Embankment , CFA
Geocell Subgrade Stabilization
| NTIS | 1999
Arkansas Bridge Foundations. Laboratory Investigation
| NTIS | 1975